Mated to the alpha king book 2. To cause to be united in marriage or a romantic sexual relationship. past simple and past participle of mate 2. a sexual partner of an animal: studying how baboons and their mates interact. chum (often used as a friendly term of address): Well, mate, let's get going. MATED definition: 1. . The meaning of MATE is checkmate. mated Definitions of mated adjective mated sexually synonyms: married joined in matrimony mate1 /meɪt/ n. 3. , mat•ed, mat•ing. one of a pair: a mate of a glove. a rank below a ship's captain: the first mate. 1. The meaning of MATE is checkmate. To cause (organisms) to breed or bring (organisms) into close proximity for breeding. spouse. To join closely or combine: an engine that is mated to a four-speed transmission. How to use mate in a sentence. to have sex and produce young, or to make animals do…. 2. , v. Learn more. nncu j32n37 lw1 bl eik dodcvs5 ooc us1jss ff ez0u